NEC POWERMATE PROFESSIONAL 9000 Service Manual page 23

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Expansion slots for add-in boards
Three dedicated PCI slots
One dedicated ISA slot
One shared slot for either a PCI or an ISA add-in board
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One 1.44-MB, 3.5-inch high-density diskette drive connector
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PS/2 -style keyboard and mouse connectors
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32-KB internal dual write-back cache integrated on the MMX processor
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Pipelined 32-bit addressing
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64-bit data
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from 32 MB to 512 MB SDRAM upgradeable with 16-MB, 32-MB, 64-MB
or 128-MB increments through DIMM sockets on system board (64-MB and
128-MB as available)
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512-KB write-back secondary cache memory on CPU module
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System Setup program built into the BIOS
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2-Mb Flash ROM for fast economical BIOS upgrades
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PCI local bus for fast data transfer
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National Heceta LM79 chip for monitoring voltage, temperature, and security
(NEC MagicEye™ technology)
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Integrated sound (audio subsystem)
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Two intelligent drive electronics (IDE) interface channels
Support for Ultra DMA/33 on Windows
Support up to four IDE devices, two to each channel
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Power management with power saving mode, featuring inactivity timer (Windows
95 systems only)
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External connectors for connecting the following external devices:
VGA-compatible monitor (standard, super, high-resolution VGA) on systems
equipped with an AGP graphics board
Personal system/2 (PS/2
PS/2-style keyboard
Bi-directional Enhanced Parallel Port (EPP) and Enhanced Capabilities Port
(ECP) support for a parallel printer
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95 systems
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)-style mouse
Technical Information 1-5